Presto, Détaché Bowing, and Bernstein

I have been enjoying playing the Presto. I've been playing it a little faster than I'm comfortable in order to get the feeling of breathless incessant notes.

When I watched Hilary Hahn play this movement, I was amazed at how she kept her bow glued to the string during the passages with sixteenths and no slurs. It just put my wimpy slow practicing and light bow stroke to shame! I realized how nice my playing can sound if I really play out. It's the same bowstroke I use to practice Kreutzer No. 2, ah yes, détaché. (Though Haslop seems to be lifting his bow off the string more than I do.)

I think Bach's rhythms are interesting. At several times during this movement, the rhythm in one measure changes from a "triplet-triplet" feel to a "1+2+3" feel. It's like something out of West-Side story! I'm referring to 0:27 in the Bach. "Triplet triplet 1+2+3+"

See about 0:56 to skip the introduction.